Figure 4. Astrocyte-specific deletion of OGT in the mPFC results in antidepressant effects.
(A) Schematic of the AAV vectors engineered to specifically knock down astrocytic OGT in the mPFC and behavioral test paradigms. (B) Representative images of injection sites in the mPFC of OGTfl/Y mice. Scale bars: 500 μm (right, magnified view of the left image): 20 μm (left). (C and D) Western blot images (C) and quantification (D) of OGT in the mPFC of OGTfl/Y mice. n = 6 (Ctrl); n = 6 (iCre) mice. (E) Immobility time of mice with selective OGT knockdown in the FST. n = 11 (Ctrl); n = 14 (iCre) mice. (F) SI time in the absence or presence of social targets before and after CSDS. n = 14 (Ctrl); n = 13 (iCre) mice. (G) Representative heatmaps of selective OGT-knockdown mice in the presence of social targets before CSDS (left) and after CSDS (right). Data are represented as mean ± SEM. Two-sided unpaired t test (D and E); 2-way ANOVA with Bonferroni’s multiple-comparisons test (F). *P < 0.05; **P < 0.01. See Supplemental Data Set 1 for statistical details.